public async Task <decimal> GetTrolleyTotal(TrolleyDto trolley)
{
var url = GetApiUrl(ApiCatalog.GetTrolleyTotal);
var response = await PostAsync <TrolleyDto>(url, trolley);
var total = await ReadApiResponse <decimal>(response);
return(total);
}
public async Task <ActionResult <string> > Post(TrolleyDto trolley)
{
_logger.LogInformation($"GetTrolleyTotal: Get total of Trolley");
var total = await Mediator.Send(new GetTrolleyTotalRequest
{
Trolley = trolley
});
return(Ok(total));
}
public async Task <decimal> GetTrolleyTotal(TrolleyDto trolley)
{
var total = await _api.GetTrolleyTotal(trolley);
return(total);
}
public void Handle_ShouldGetTrolleyTotal()
{
var expected = "123";
var trolley = new TrolleyDto
{
Products = new List <TrolleyProduct>
{
new TrolleyProduct {
Name = "TP1", Price = 1
},
new TrolleyProduct {
Name = "TP2", Price = 2
},
new TrolleyProduct {
Name = "TP3", Price = 3
}
},
Quantities = new List <TrolleyProductQuantity>
{
new TrolleyProductQuantity {
Name = "TPQ1", Quantity = 1
},
new TrolleyProductQuantity {
Name = "TPQ2", Quantity = 2
},
new TrolleyProductQuantity {
Name = "TPQ3", Quantity = 3
}
},
Specials = new List <TrolleySpecial>
{
new TrolleySpecial {
Quantities = new List <TrolleyProductQuantity>
{
new TrolleyProductQuantity {
Name = "TPQS1", Quantity = 1
},
new TrolleyProductQuantity {
Name = "TPQS2", Quantity = 2
},
new TrolleyProductQuantity {
Name = "TPQS3", Quantity = 3
}
},
Total = 3
}
}
};
var request = new GetTrolleyTotalRequest
{
Trolley = trolley
};
var mapper = new MapperConfiguration(c =>
{
c.AddProfile(new MappingProfile());
}).CreateMapper();
var entity = mapper.Map <TrolleyEntity>(request.Trolley);
_mockMapper.Setup(s => s.Map <TrolleyEntity>(request.Trolley)).Returns(entity);
_mockTrolleyService.Setup(s => s.GetTrolleyTotal(entity)).ReturnsAsync(expected);
var result = _sut.Handle(request, It.IsAny <CancellationToken>()).Result;
Assert.Equal(expected, result);
}
public async Task <decimal> CalculateTotal([FromBody] TrolleyDto trolley)
{
return(await _mediator.Send(new GetTrolleyTotalQuery(trolley)));
}
public GetTrolleyTotalQuery(TrolleyDto trolley)
{
Trolley = trolley;
}
public decimal TrolleyCalculator([FromQuery] string token, [FromBody] TrolleyDto trolley)
{
var total = _trolleyService.CalculatePrice(trolley);
return(total);
}
public decimal CalculatePrice(TrolleyDto trolley)
{
decimal finalSum = 0;
// Calculate max price
foreach (var quantity in trolley.Quantities)
{
//find the product price
var product = trolley.Products.Where(p => p.Name == quantity.Name).FirstOrDefault();
if (product != null)
{
product.Quantity += quantity.Quantity;
finalSum += product.Price * quantity.Quantity;
}
}
//loop over all the offers
foreach (var special in trolley.Specials)
{
var doesSpecialApply = true;
Dictionary <ProductDto, int> products = new Dictionary <ProductDto, int>();
foreach (var quantity in special.Quantities)
{
var product = trolley.Products.Where(p => p.Name == quantity.Name && p.Quantity > 0).FirstOrDefault();
if (product != null)
{
products.Add(product, quantity.Quantity);
if (product.Quantity < quantity.Quantity)
{
doesSpecialApply = false;
}
}
else
{
doesSpecialApply = false;
}
}
if (doesSpecialApply)
{
decimal currentSum = 0;
foreach (var product in trolley.Products.Where(p => p.Quantity > 0))
{
if (products.ContainsKey(product))
{
currentSum += (product.Quantity - products[product]) * product.Price;
}
else
{
currentSum += product.Quantity * product.Price;
}
}
currentSum += special.Total;
if (finalSum > currentSum)
{
finalSum = currentSum;
}
}
}
return(finalSum);
}
